... 硝酸钠 Nitrate of soda ，Sodium nitrate 硝酸法过磷酸钙 Nitrate superphosphate 耐酸硝布 Nitrated cloth ...
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According to soil fertility and soil structure in the loess plateau, the experiment of fertilizer amount was carried out with ammonium nitrate and calcium superphosphate.
根据黄土丘陵区土壤肥力特点及土体结构，选用硝酸铵和过磷酸钙作为试验肥料，进行了不同施肥量试验。
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